| 摘要 |
Fiber-reactive dyestuffs of the formula <IMAGE> wherein <IMAGE> is a dyestuff radical, the ring A is cyclopentenyl, cyclohexenyl or cycloheptenyl, X is chloro, bromo or fluoro and R is hydrogen, lower alkyl, cyclohexyl or phenyl. These fiber-reactive dyestuffs are suitable for dyeing and printing silk, leather, wool, polyamide, polyurethanes, and cellulosic materials.
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